Lichen is a form in which green or bluegreen algae and a fungus live together symbiotically.地衣是一种绿藻或蓝藻与一种真菌共生的形式.Holdfast ( hapteron ) In algae , the cell or organ that attaches the plant to the substrate.固着器:是藻类植物具有的一种起...
Abortion has always been a divisive issue.人工流产一直是个引发争议的问题。A referendum would be divisive.公投将产生分歧。He believes that unemployment is socially divisive and is leading to the creation of an underclass.他认为失业会造成社会分化，道致贫困阶层的产生。A...
They had five centuries of domination by the Romans.他们被罗马人统治了5个世纪。When they conquered Britain, the Romans brought this custom with them.古罗马人征服英国的时候也带来了这个风俗。Lettuce was grown by the Ancient Romans.古罗马人最先种植莴苣。...